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3.
A database query language and report writer to allow users to
interactively interrogate the database, analyze its data and update it
according to the users privileges on data.
4.
A transaction mechanism, that ideally would guarantee the ACID
properties, in order to ensure data integrity, despite concurrent user
accesses (concurrency control), and faults (fault tolerance).
2.2 Theoretical Framework
2.2.1 Human
Computer
Interaction
Human
Computer
Interaction³ is
a
study
of
interaction
between
computer
and
people
of
a
system
and
also
the
design
interface
to
process
the output.
This
subject is learning of relating between the computer sciences with much other
field study and research. Interaction between users and computers arise at the
user interface, which is including both of software and hardware. Instance of
the
interface
is
system
in
airplane
(the
mechanical
system);
where
we
create
the system include the software and hardware.
The user interface itself is like a dialog between the user and computer,
therefore
it
is
important to know what the user wants
in the system rather than
3
Satzinger, John B., Jackson, Robert B., Burd, Stephen D. 2007, ’Designing User Interface’, in System
Analysis and Design in a Changing World, Thomson Course Technology, United States of America, pp
531.
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